Proselytism

A Christian proselytizer trying to spread his faith in London, England, 1970

Proselytism (/ˈprɒsəlɪtɪzəm/ ⓘ) is the policy of attempting to convert people's religious beliefs. Carrying out attempts to instill beliefs can be called proselytization.

Proselytism is illegal in some countries. Some draw distinctions between Christian evangelism and proselytism, regarding proselytism as involuntary or coerced; the two terms can also be understood to merely be synonyms.